Archive of Collections



Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU651Linear
4097
4371
2
Ever-ThereKeuffel & EsserUSA
29190
Engine Divided White Xylonite
"5"
1935
C5

Notes: "Same scale set as seen on K&E 4094 Merchants' slide rule. Frameless indicator with metal guides and celluloid window. PAT. 1,875, 927 replaces PAT. PENDING."

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